Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

White ring with a black three numeric code, starting number "3" and a dot '.' between second and third number.

note 1 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
White [W]
colour-ring code (of the c-ring): 
Three numeric code (3 numbers).
countries where ringed: 
The Netherlands.
First letter/number (of the c-ring): 
3